# ENTERPRISE PRODUCTS OPERATING LLC — Gas transmission and gathering — incident on 2010-02-17

- **operation:** document
- **citation:** PHMSA Report 20100004
- **title:** ENTERPRISE PRODUCTS OPERATING LLC — Gas transmission and gathering — incident on 2010-02-17
- **source type:** incident
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** 2010-03-17
- **effective on:** 2010-02-17
- **summary:** Gas transmission and gathering incident in RHOME, WISE County, TX. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 35192 NATURAL GAS released, $0 reported property damage. Operator-reported incident data submitted to PHMSA, generally within 30 days. Records may be supplemented or corrected and do not represent final agency causal findings. PHMSA trend classification: significant incident, not serious.
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**body:**

Gas transmission and gathering incident in RHOME, WISE County, TX. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 35192 NATURAL GAS released, $0 reported property damage. Operator-reported incident data submitted to PHMSA, generally within 30 days. Records may be supplemented or corrected and do not represent final agency causal findings.

Report number: 20100004.

Operator ID: 31618.

Reported incident date: 2/17/2010 4:40.

Location detail: 78

Cause detail: MALFUNCTION OF CONTROL/RELIEF EQUIPMENT

Cause detail: ON FEBRUARY 17, 2010 THE WISE COUNTY COMPRESSOR STATION DISCHARGE VENT VALVE SOLENOID FAILED, CAUSING THE COMPRESSOR DISCHARGE VENT VALVE TO OPEN. THE PLC FAILED TO CLOSE THE SUCTION AND DISCHARGE VALVES ON THE COMPRESSOR AND INITIATE A COMPRESSOR STATION SHUTDOWN. THE INCIDENT WAS DISCOVERED BY LOCAL OPERATIONS AT 06:50. AFTER REVIEW OF THE INCIDENT, IT WAS DISCOVERED THAT A SEQUENCE BYPASS HAD BEEN INSTALLED DURING THE INTIAL COMMISSIONING OF THE STATION TO HELP PURGE THE STATION. THE BYPASS WAS NOT REMOVED AFTER COMMISSIONING. THIS ALLOWED THE COMPRESSOR SUCTION AND DISCHARGE VALVES TO STAY OPEN WHEN THE SOLENIOD FAILED ON THE COMPRESSOR VENT VALVE CAUSING IT TO OPEN.

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: EQUIPMENT FAILURE — MALFUNCTION OF CONTROL/RELIEF EQUIPMENT.

PHMSA indexed costs: $189,000 reported total cost, $120,800.971 in 1984 dollars, $148,325.243 in current-year dollars.

PHMSA trend flags, standardized causes, and indexed costs are analytical fields added to operator-reported incident data. They do not represent final agency causal findings.
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